Type-writing machine.



A. T. BROWN.

TYPE WRITING MACHINE. APPLIOATION FILED N0\T.10 1905. RENEWED DEU.14, 1907.

B SHEETS-SHEET 1.

I ITNESSES:

1N VEN TOR.

- PATENTED MAY 5, 1908. v

PATENTED MAY 5, 1908. A. T. BROWN.

TYPE WRITING MACHINE. APPLIOATION FILED NOV. 10. 1905. RENE WED DBO. 14, 1907.

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No. 886,759. PATENTED MAY5, 1908.

- A. T. BROWN.

TYPE WRITING MAGHINE. APPLIUATION FILED NOV. 10 1905. RENEWED DEG. 14, 1907.

6 SHEETSSHEET 3.

WITNESSES INVENTOR.

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PATENTED MAY 5, 1908.

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A. T. BROWN. TYPE-WRITI G MACHINE. APPLICATION FILED NOV. 10. 1905. RENEWED DEO.14, 1907.

INVENTOR. :7. v- -1- BY ATTORNEY.

. WITNESSES PATENTED MAY 5, 1908.

A. T. BROWN, TYPE WRITING MACHINE. APPLICATION FILED NOV. 10. 1905. RENEWED DEG.14,1907.

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WITNESSES.

UNITED sfrArr s PATENT OFFICE.

ALEXANDER T. BROWN, or SYRACUSE, NEW YORK.

TYPE-WRITING MACHINE Application filed November 10, 1905, Serial No. 286,708;

To all whom it may concern:

Be it known that LALEXANDER T. BROWN, citizen'of the United States, and resident of Syracuse, in'the county of Onondaga and State of New York, have invented certain new and useful Improvements in Type- VVriting Machines, 'of which the following is a specification.

This invention relates to typewriting mam chines and more especially to the ribbon mechanism of such machines.

One of the objects of my invention is to provide an improved polychrome ribbon mechanism. I

Another'object is to provide an improved meansfor reversing the direction of feed of the ribbon, both automatically and by hand.

Another object is to provide improved means for turning the ribbon spools and for communicating motion from one ribbon spool shaft to the other.

A further object of my invention is to simplify and generally to improve the ribbon mechanism of a typewriting machine.

Other objects will appear hereinafter,

My invention is illustrated in the, accompanying drawings in which,

Figure 1 is a right hand side elevation,

partly insection, of so much of a typewriting,

machine as is necessary to illustrate my invention. Fig. 2 is a top plan view of the same, the carriage being removed; Fig. 3 is a rear elevation of the same. Fig. 4 is a view of the same on a transverse vertical section taken aboutv centrally of the type basket. Fig. 5 is a detail rear eleiation of a device for transmitting the motion of one spool shaft to the other. Fig. 6 is an enlarged detail sectional view of a part of saiddevice. Fig. 7 is a top plan view, partly in section, showing the ribbon feeding mechanism. Fig. 8 is a detail front view of a device for shifting the ribbon from one field to another. Fig. 9 is an enlarged detail sectional view of a stop device.

My invention is applicable to typewriting and similar machines generally and it is here shown applied to writer. The main frame of this machine comprises side'plates 1 connected together at their rear ends by a rear plate 2. Posts 3, rising from said side plates, support a top late 4 which carries rails 5 having ball races armed therein. A platen 6 is mounted in a carriage7 having grooved rails that are supa Smith Premier type-x Specification of Letters Patent.

Patented May 5, 1908. Renewed December 14, 1907; Serial No. 406,486.

, I ported by anti friction rollers S that cooperate with said grooved rails and with correspondingly grooved rails 5 mounted on the top plate 4. Printing keys 9 are mounted on keystems that move up and downin angled frame plates 10 that are mounted on the side plates 1 of the main frame and the lower ends of said key stems are pivoted to arms 11 projecting from rock shafts 12 (Fig. 1), the forward ends of which are piv'o'ted'in said frame plates 10 and the rear ends of which are pivoted in the back plate 2. Said TOOK shafts 12 are connected by links 13 with type bars 14 in such manner that when one of the keys 9 i's-depressed the corresponding type bar is operated side of the platen 6.

Each ofthe rock shafts 12 hasprojecting therefrom near its rear end an arm'16"('Fig. 3) that is adapted to engage a gate or universal bar 17 mounted on arms 18 which are pivoted at 19 to said gate and at their opposite ends at 20 to the back plate 2. The universalbar or gate 17 is provided with a restoring spring 21. Said uni *ersal bar carries a bracket 22 which engages an arm 23 projectingfrom a vertical rock shaft 24 ,that is pivoted in the said shaft are mounted feed dogs 25 that col 7, is journaled on the reduced rear end of a operate with an escapement wheel 26 that is mounted on a shaft 26 journaled infa housing 27 (Fig. 1). The shaft 26 is geared through a pinion 28 to afeed rack 29 mounted on the rear rail of the carriage 7. The carriage is drawn across the machine by a tape 30 that winds on a ulley 31 integral with a drum 32, the hub of which, as shown in Fig.

sleeve 33, the forward end whereof is seated in a hole in the left hand rear post 3, or the right hand post as viewed in Fig. 7, which it Wlll be notedis viewed as from the rear of the machine. The sleeve 33 is secured in position by a set screw 34 which is. threaded through said post '3, and en ages said sleeve. A carriage spring '35 is seated in a chamberedout portion of the drum 32, its outer end Ibe- The inner end a lug 36 projecting connected to said drum. of said spring is connected to ing from the hub 36" of a toothed wheel 37 which may be turned to regulate the tension of the spring. The 'hub 36 is journale'd on] the sleeve 33. a y

A ribbon'spool shaft 38 is journaled at its .right, hand posts E ,Whecl 42 is engaged by a which is pivoted on a shoul ered and headed rear cnd i'n the sleeve 33 and its forward end in a suitable opening in the left-hand front post 3. findwise'inotion of the shaft 38 towards the back-0f the machine is prevented by a collar 39 mounted on saidshaft andsecured in position by a set screw 40. Said collar abuts the fonvanlend of the sleeve 33. The shaft 38 extends beyond the rear end of said sleeve and has rigidly mounted thereon the hub 41 of a ratchet wheel 42 ,said huh being secured in osition by a pin 43 extending through said] rub and the shaft 38. The hub 41 is recessed as shown in Fig. 7 to, re ceive the hub of the drum 32. The ratchet awl 44 (Fig. 3)

screw 45 threaded into the drum 32. .Said pawl is pressed into engagement with said ratchet wheel bye 8 ring 46 connected at one end to the tail of the awl and at the other end to one of the spo es of the Wheel 31. The construction is such that when the carriage is moving in rinting direction toward, the left the ratcfietwheel 42, and the shaft 38Wlll be turned by the awl. 44.; but toward the hen said carriagefis returne ht, said awl ma move idly over the teeth '0 the ratc let whee withoutturnin 301' the shaft 38. A second ribbon spool s aft 47 is journaled in suitable openings in the two wisemotion [of said shaft toward the front of the machine is the front post 3.

shaft rearwardl is prevented by 'a screw 51 @Ppgv'snfid by a collar 48 (Fig. 7) secured to the shaft-by a set screw. 49 and contactin with a washer 50 which abuts .the rear side 0' Endwise motion of said that is threads into the end of the shaftand the head of which enga es the post- 3. Y

have provided nove means for transmitmotion from the shaft 38 to the shaft 47.

' shaft 47 projects some distance back of the rear post 3 and on its rear end there is rear faces of the ratchet wheel 42 and crank .arm 52, respectively. Said spherical ends 50: fbnt not large enough to ermit the passage I .of the ball or sphere 55.

are held against disfplacement by small plates 56 and 57, the ormer' of which is secured by screws '58 to the rear face of the ratchet wheel 42 Said plate 56 is formed with an opening, shown in Fi 6 at 59, of a size to fit over the reduced nec k of the rod 54 he plate 56has an -:opening, the mner surface of which is of .spherical form and enables said plate to fit over the ball and prevent it from escaping cured by screws 63.

from its socket. The plate 574s secured to the arm 52 by a screw 60 and o rates'in the same way to retain the other ba 55 in lace.

The sockets in the ratchet wheel 42 an arm 52larc at the same distance from the centers of the respective shafts 38 and 47. 54 is bent in the form shown in Fi 7 where it will be seen that said rod is straig it throughmounted in open ended slots 61- (F ig 1) formed in two brackets 62 which depend from the topplate 4 to which they are se- The slots 61 are horizontal and extend in a front and back direction and the rod 54 is loosely mounted iii said slots. The slots 61 are at substantially the same elevation as the shafts 38 and 47, and the rod 54'is free to turn in said slots and also to slide therethrough in any direction.

When the parts stand in the position shown in full lines in Fig. 5, the rod 54 acts as a rock shaft so that if the ratchet wheel 42 be turned, the forwardly bentend 54 of the rod-54 that is connected with said ratchet wheel will be depressed, thus rocking the rod 54 in its bearings and depressing the forwardly bent arm 54 of said rod that is connected to the The rod v crank 52 so that said crank will also be depressed. When the parts reach the position sitions of Fig. 5 the cranking action and link action of the connection 54 will be combined, It will be observed that in the full line osition of Fi 5 the rod 54-, considered as a ink, is on the dead center; but considered as rock shaft having two forwardl extending arms, it is at its best position or work. dotted line position of Fig. 5 the rod 54, considered as a rock shaft, is on the dead center; but considered as a link it is in its best position for transmitting motion. It will thus be seen that this rod transn'iits motion by a sort of combined crank shaft and link action, in some positions one of these actions taking place alone and in other positions the two actions taking place simultaneously. The resuit is that motion is transmitted equally well in all positions, the )arts having no dead center in any position. t will also e understood that in addition to sliding longitudinally, the 'od 54 slides from front toback of the machine in the slots 61. In the full line position of Fig. 5 the rod will stand in its rearmost positionand in the dotted line position In the of Fig. Sit will stand slightly forward of said the forwardly bent arms'of the rod.

rear-most position due to the inclination of It will, of course, be understood that the operation of the rod would'be the same if it were straight throughout its entire length and had arms at its ends projecting at right angles toward the front of .the machine; but I have preferred to extend said arms at the angle shown, it being merely necessary to so shape the arms that they do not interfere with other parts of the mechanism,such, for instance, as the hub 41 and the rear end of the shaft 43. This connection is an extremely simple and convenient means, for communicating motion from one of two parallel'shafts' to the other. It will be obvious that the vmotion of the two shafts will be in the same direction. In order to. ositively prevent rotation of the shafts 38 and 47 in a right hand direction, a ratchet wheel 64 (Fig. 3) is rigidly mounted on the shaft 47 and is engaged by a weighted pawl 65 that is pivoted on a shouldered and head:

ed screw'66 threaded into the post 3.

As best appears in Fi 7, a ribbon spool 67 is loosely mounted on t e shaft 38 just back .of the forward post 3 and consists of a hollow sheet metal core sup ortedby two end flanges '68 which are journa ed on said shaft.

Endwise motion of said spool toward-the front of the machine is prevented by a washer 69 interposed between oneof the flanges 68 and the forward post 3; andfendwise motion of said spool in the other direction is prevented by a pin or screw 70 projecting from the shaft 1 3.7 justwithin said flange 68. A similar spool 71 is loosely mounted on-a'shaft 47 just in front of the rear post 3. Motion of said spool toward the back of the machine is prevented to the other in" an ofif-set path as shown in' by said post and motionof said spool-toward the front of the machine is prevented by a pinor screw 72 projecting from the shaft 47 ust in front ofthe rear flange 68 of the spool;

It will be observed that the rear end of the spool 67 is somewhat nearer the frontof the machine than the front end of the spool-71; and the ribbon is led from oneof these spools Fig. 2 by means of certain uid'es which will nowbe described. The rib, on 73-is guided upward from the spools through suitable slots in the top plate and is guided over two plates 74 that are secured to the top plate by screws 75 (Fig. 2). Amovable guide plate 7 6 i has an elongated opening 7 7 through which'the type are adapted to strike against the ribbon as shown inv said Fig. 2. Said guide plate also has two openings 78 and 7 ,9, The rib-' bon passes. from the spool 67 over the left-- hand plate],7,4, under the guide plate 76, upthrough the ebliqueguide opening, 74, thence toward the rear of the machine over thetype the latter being behind the former.

opening 77, down through the oblique opening 79, thence under the plate 76 and overtheforward edge 81 of the opening 79 are the right hand plate 74, and thence downward through the right hand slot to the spool The rear edge 80 .of the opening 78 and parallel and preferably at angles of 45 with the direction of the travel of the carriage so that the part of the ribbon thatlies over the printing point extends from front to back of the machine. It will be seen from Fig. 2'

that the printing point is a little. back of the left-hand ribbon spool and a little in front of the right hand spool so that the type strike only the fore and aft extending part of the ribbon. v

The guide plate 76 is mounted to slide in a direction parallel to that of the motion of the carriage. topplate 4 and lies partly under the forward carriage rail 5 but out of contact with said rail. The bar 82 has a longitudinal slot 83 therein and two ears 84 are bent downward A frame bar 82 is mounted on the from the forward edge of the plate. 76 into said slot 83 and serve to guide-the plate. The rearend of the plate 76 passes under a frame bar 85 and is bent up behindsaid bar and forward over the edge of said bar, forming a flange or rib 87 that lies over the top'of the bar 85. front of the machine from the plate 76, said arm lying over the bar82 and under the carriage rail 5. The arm 88 has its forward end formed into a pointer or index 89 and said armcarries a finger piece 90 by which the plate 76 may be slid to the right, or left, as will be understood. As best shown in Figs. 2 and 8, the arm 88 near its,forward' end that has at its ends two short posts 92 and An arm.88 projects toward thewhich is secured to the top plate by screws 93. The bar 91 is toothed on its under side and the arm 88 where it lies beneath said bar is formed with a tooth .94 which is adapted to coeperate with the'teeth on the bar 91 to hold the plate 76 in any position towhichit j,

presses thetooth 94 up against the bar 91.

.finger piece is moved to the right or left as desired, its motion being limited by the posts 92. The construction is such that ifthe arm 88 stands against the right hand post92, the forward edge of the ribbon will be fed over the; printing point. In whatever position the arm 88 stands the longitudinal feed of the ribbon will resultin a single longitudinal line of the ribbon being fed under-the printing point.

It will be obvious that this device is capable of use with'a ribbon of uniform character throughout and that the entire surface of the ribbon may be utilized by the operator taking care'occasionally to change the adjustment of the arm 88. This mechanism is,

however, especially adapted for use witha ribbon having two or more longitudinal fields of different characteristics. such, for example, as a ribbon that is inked in longitudinal stripes with dilfercnt colors or different kinds of ink and which is commonly called a poly-. ()ne of the stripes, for. e.

cating devices corresponding to the, different stripes of the ribbon used in the machine. It will be obvious that any other suitable form of indicator may he used. in the present instance the indicator is a separate piece of material secured in position by a frame consisting of a plate 96, the rear edge of which rests beneath the posts 92 and the forward edge of which is secured to the top plate by screws 97. it will be obvious that the indicator 9:) may very well consist of a short section cut from the ink ribbon that is in use in themachine.

It is sometimes desirable to remove or shift the ribbon entirely front the printing point. in some machines this is done to inspect or clean the type and in the Smith Premier xnachine this is done for the purpose of inserting a crank to operate a type cleaning brush that is permanently mounted in the machine. It may also be desirable to shift the ink ribbon to uncover the printing point in case the machine is used for doing mimeograph work. In the present instance this is readily provided for by making the bar SH of such a length as to admit of a motion-of the arm 88 of sufficient extent to carry the plate 76 entirely away from the printing point. This extreme position of the parts is indicated in dotted lines in Fig. "2.

It is sometimes convenient to have an adjustable stop to limit the motion of the arm- 88 and I have shown such a stop in the present instance. A piece of sheet metal 98 (Fig. 9) is bent about the bar (H. extending underneath and up behind said bar. Said sheet metal piece also extends up in front of the bar to a point a short distance above saidbar, whence it is bent. backward forming a finger piece 99. A flat spring 100 is bent into a U-shape and is sprung over the bar 91 and under'the sheet metal piece 08, the tension of the spring tending to press upward on said sheet metal piece. A tooth 101 is stamped up from the shectmctal piece 08 and is adapted to be pressed by the spring 100 into one of the notches on the under side of the bar 9|. When. it is desired to change the inljustanent. of the stop, the operator presses with his finger on the finger piece 99, thus depressing the tooth it)! away front the bar 9t, after which the stop may'be slid along said barin either direction. The spring plate 100 is retained in position. by having the et-lgesr-of a hole therein bent; upward nto a corresponding hole in the piece as, as shown at 102. The piece as has a stop lug 103 bent down therefrom in posit ion to engage the arm'hS of the ribbon guide.

I have provided in ans for coupling one or the other of the ribbon spools (i7 and 71 to its and extends into a iongitndinal slot in the sleeve ltlti. Said sleeve is formed with a worm 10h. 'lhe ribbon spool Tl has clutch teeth 10!) formed on the forward end thereof and said clutch teeth are adapted to cooperate with clutch teeth on the rear end of a. sleeve fit) that is slidably mounted on the shaft 47 but is constrained to turn in unison "with said shaft by a pin 11] passing through the shaft and extending into a longitudinal slot in the sleeve. The sleeve lit) is formed with a worm H2. 'lhe slecvc HHS is formed with an annular groove that is engaged by a forked or notched arm 1 [3 (Fig. 4) bent off from an upright arm H4 that is mounted at its lower end on a shaft H5 by means of a set screw H6 threadedthrough the hub of said arm and engaging said shaft. The shaft I15 extends across the machine beneath the series of rock shafts l2 and is pivoted at its ends on pivot screws H7 thretnlcd through the .side plates 1 and having reduced ends entering suitable openings in the ends of the shaft 115. ()n the right hand end of said shaft 115 a second upright arm 1 is is mounted, being secured in position by a. set screw 119 threaded through the hub of the arm and engaging the shaft. Said arm 118 has bent off therefrom a forkedor notched arm 120 that engages an annular groove in the sleeve 110. The construction is such that if the shaft 115 he rocked toward the rear of the. machine the sleeve 110 will be clutched to the )(ml 7 l,thus causing said spool to turn with t 1e shaft 47, whereas the sleeve lt-lt'i will have its clutch teeth 105 out of engagement with jthe clutch teeth NH on the spool (37 so that'- "this latter spool will be uncou ilcd from its shaft.- If by any means the s iaft H5 and the arms 1H and HS be turned toward the front of the machine, both sleeves will move toward the front of the machine, thus coupby a pin1 122. Theupper ends of the two plates constituting said double link and connected by a pin 123 on which is pivoted the rear end of a flat spring 124,-the forward end of which rests on the top of one of the posts 3 to which it is secured by a screw 125. Y The tension of the spring 124 is exerted down- .Ward and the partsare so proportioned that when the arm 118 is in its rear position the,

link 121-is inclined downward and toward the rear of the machine so that the tension of the spring tends to press said arm toward the rear of the machine; When the parts are shifted and thearm 118 moved toward the front of the machine the link 12 passes its dead center and moves to a position Where it is inclined downwardly toward the front of the machine so that the tension of the spring 124 is nowexerted to hold the parts in their forward positions. It will be a arent, however, that the parts may be s ifted at any time by the application of aslight force and .thatthis maybe done by hand, the operator takingholdof one of the arms 114, 118.' I

have, however, provided automatic meansfor effecting the shift, the worms 108 and 112 being partsof said means. i

As best shown in Figs. 1 and 4, a short rock'shaft 126 isloosely mounted in cars 127 depending from a plate 128 that is secured ,to the under side of thetop plate 4 by screws 129. The rock shaft 126 is situated above and a little to the right ,of the axis of the spool 71 and said rock shaft has a plate-like arm or ,wing 130 extendingtherefrom and said arm-,or fingers '131' thereof rests by gray ity on the ribbon wound on said spool 71."

As best shown in Figfi 7 the core of the spool '71 has slots "132 formed therein" into I i which, whenth'at part of the spool is entirely 1 forward end-of theshaft 126 has ent off therefrornan arm 133, the 'free end of whichcons' titu,tes (a. tooth orL-tripper, The Con:

- structioniis suchthat when theribbon is nearlyfexhausted frem'the'sp ool and uncov .ers" th'e slot s 132, the fingersa131dr p'dnt0' whichworm rotates with the shaft 47-.-

..continuedrotation of said shaft and worm uncovered, the fingers'l 31" may The the slots and j the free end of tlre arm 138 drops into engagement with-the worm 112,-

.. causes theworm to .be forced-lengthwise of ,thQ Shaft47 toward therearof the machine .until the jlink 121 has passed its dead center and the clutch; teeth. connected with? said worm f engage the clutch teeth- 1'09 "Ton the The spool 71, thus coupling said spool to the shaft. As has been explained above, this Above and to the right. of the spool 67 there is mounted a rock shaft 135 similar to the rock shaft 126. Said shaft 135 is journaled at its ends in ears 136 depending from a plate 137 which is secured by screws 138 to the under side of apart of the top plate 4. The shaft 135 has projecting therefrom a wing or arm 139 (Fig. 4) having fingers 140 (Fig. 1) that normally rest on the ribbon but that are adapted to drop when the ribbon is nearly exhausted into slots 141 (Fig. 7) in the spool 67. The shaft 135 has an arm similar to the arm 133,-the end of which is adapted to drop into engagement with the .worm 108 and to cause said worm to move itself towards the front of the machine and thus couple the spool 67 to its shaft and uncouple the spool 71 from its shaft, thus reversing the direction of the feed of the ribbon. Either of the ribbon spool shafts 38 and 47 may have mounted on its forward end a hand crank 142 by which the ribbon may be fed longitudinally by hand. v

Various'changes may be made in the arrangement and construction of the devices above described without departing from the spirit of my invention.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine and in ribbon mechanism, the combination of two ribbon spools; two parallel shafts, one for eachof said spools; means for driving said shafts, each of said shafts being always turned in the same direction and means for connecting either of said spools to turn with its shaft and for disconnecting the other of said spools.

2. In a typewriting machine and in a rib bon-mechanism, the combinationof a pair of ribbon-spools, shafts on which said ribbon spools are mounted, a spring'dru'm surrounding one of said shafts and having a driving for coupling either of said spools to turn with its shaft and uncoupling the other spool.

3. In a typewriting machine and in a ribbon mechanism,'the combination of a pair of ribbonspools, a shaft for each of'said spools, a spring. drumsurrounding one ofsaid shafts uncouples the other spool from its shaft.

connectionwithboth of] said shafts, a car- 'riagedriven' by said spring drumggand means and having pawl and ratchet connection therewith, a drivin connection from said- 'shafttotheotheno said shafts,- and means for coupling either of said spools to its shaft and uncoupling the other s ool.

4 In a typewriting mac ine'an'd in a rib bon mechanism, the combination of two shafts, mean's'for turning said shafts in unison, a ribbon s 001 mounted on each of said shafts, a clutc member slidably mounted on each of said shafta a clutchmemb'eroni .each of, said ribbonspools, and means for,

bou mechanism, the combination ol :1. pair ol 7 rotary shal'ts, a ribbon spool mounted on each bers are moved in one direction one of saidand'a Y bers eomlgzs ng a combmed link and crankof said shafts, each of said ribbon spools being provided with a clutch member, a worm mounted on each of said shafts and provided with a clutch member, and ribbon controlled trip devices for engaging said worms to ell'ect a reverse in thedirwwtion ol' l'eed ol the ribbon.

(i. in a tvpmvriting machine. and in a. ribbon mechanism, the combination of two ro tary shafts, a ribbon spool mounted on each ofsaid shafts, each of said ribbon spools having a clutch member, a cooperating clutch member slidably mounted on each of said shafts and movable into and out et engagement with the clutch member on the ribbon s 00], and a ('onnccfion lmtween said slidable 'outch members for causing one oi .said

clutch members to move out o'l' engagement with its ribbon spool when the other of said clutch members moves in to engagement with its ribbon spool.

7. in a typewriting machine and in a ribbon mechanism, the combination of a'pair of rotary shafts, a ribbon spool mounted on each of said shafts, each of said ribbon s ools having a clutch member, a worm sli( ably mounted on each of said shafts each of said worms having a clutch member, ribbon controlled trip devices for engaging said worms,

and connections whereby when one of said Worms is moved to bring its clutch member into engagement with its mate theether of said clutch members is moved out oi engagement with its mate.

8. In a typewriting machine and in a ribbon mechanism, the combination of two parailel rotary shafts, a member slid ably mounted on each of said shafts, said. members being provided with clutch teeth on one end-thereof, the clutch teeth on one member being on the opposite end from the clutch teeth on the other member, means for sliding said sliding members in the same direction, and a pair of ribbon spools having clutch members coo J01- ating wlth the clutch teeth on said sliding members, whereby when said sliding memribbon spools will be coupled to its shaft; and the other will be uncoupled to feed the ribbon in one direction, and when said members are moved in the other direction the feed of the ribbon will be'reversed.

9. In atypewriting machine and in a ribbon mechanism, the combination of two members mounted to rotate on parallel axes,

connection between said meming mem r connected eccentrically with "right angles to said Iparallel axes and to move in the direction o' its length, said member being eccentrically connected with each 01' said rotary members by a universal joint.

I 1. In .t lypeu-miling machine and in a ribbon mechanism, the combination of two par allel sha'l'ls, a'ribbon spool mounted on each of said shal'ts, a clutch member on' one end of one of said ribbon spools, a clutch memberor the opposite end oi the other of said ribbon spools, cooperating clutch members slidablv mounted on said sha'l'ls, and a rocking member opera-lively connected with each of said clutch members to constrain them to slide in the same direction, \vherebv when one ol' said clutch members is moved into engagement the other will be moved out of engagement. and means Tori-o1 aliug said shal'ls.

13. la a typewrlting machine and in a rib-- bon mechanism, the combination oi (as shafts on o posite sides of the machine, a ribbon spooi mounted on each of said shafts, one of said ribbon spools having a clutch member on one end thereof and the other of said ribbon spools having a clutch-member on the opposite end thereof, cooperating clutch members slidablv mounted on said shafts, and a rock shaft extending'across the machine and having arms for controlling the sliding motion of said slidable clutch mom-- hers.

13.111 a typewriting machine and in a ribbon mechanism, the combination .of two rotary shafts mounted on opposite sides of the machine,a ribbon spool mounted on one of said shafts forward of the printing point and having a. clutch member on its rear end, a ribbon spool mounted on the other of said shafts back oi the printing point and having a clutch member on its forward end, coo rating clutch members slidably mount-e on said shafts, means for causing slid clutch members to slide inthesame direction, and means for guiding an ink ribbon from one of said spools to the other in an off-set path.

I4. I n a typewriting machine, the combination of two shafts, and a conneoting membe! for causing said shafts to turn in unison, said connecting member being mounted for oscillatory and sliding motion and having arms eecentrically connected. with said shafts by universal joints.

15. In a typewriting machine, the combination of two shafts located at a distance apart, and a zonnecting member for causing said shafts to rotate in unison, said connectmg member being mounted for longitudinal 130 and oscillatory motion and having two arms each eccentrically connected with one of said shafts by a universal joint.

16. In a typewriting machine, the combi nation of two rotary shafts located -at a distance apart, and a connecting member for causing said shafts to rotate in unison, said connecting member consisting of a rod hav ing two arms one eccentrically connected witheach of said rotary shafts by a universal joint, said rod at one part of the rotation of said shafts acting as a link and at another part of the rotation of said. shafts acting as a crank shaft.

17. In a typewriting machine and in a ribbon mechanis1n,the combination of two par allel ribbon s ool shafts, ribbon spools m ountad on said siiafts, means for driving one of said shafts, and means for communicating the motion-of said driven shaft to the other of said shafts, said means com rising a member mounted for longitudina and rocking motion and having two arms, one eccentrically .connected with each of said shafts by a universal joint.

18. Ina typewriting machine and in a rib-' bon mechanism, the combination of two shafts, means for turning both of said shafts, a pair of ribbon s ools one mounted on each of said shafts, am. means for coupling either of said spools to its shaft and uncoupling the other s 001.

19. n a typewriting machine and in a ribcharacteristics, hand operated means for moving said movable guide to bring one or another of said fields to the printing point Without afiecting said ribbon spools, and an indicating device to indicate which field of the ribbon is at the printing point.

20. In a typewriting machine and in a ribbon mechanism, the combination of two ribbon s 'ools at o posite sides of the machine, an ink ribbon h different characteristics, a ribbon guide having oblique surfaces for guiding said ribbon across the printing oint in an off-set ath, the printing point cing between sai oblique surfaces, means for moving said guide .in the general 'directionof the longitudinal feed of the ribbon, whereby any desire(l"-one of said longitudinal fields may be brought to the printing point, an indicating device for indicating which of said fields is at the printing point, and. means for retaining said guide in different set positions.

21. In a typewriting machine and in a rib bon mechanism, the combination of two ribaving longitudinal fields of" bon spools at opposite sides of the machine, an ink ribbon having longitudinal fields of different characteristics, a guide for said ink ribbon havingoblique guidesurfaccs for guid ing said ribbon across the printing point in an offset path, the printing point being between said oblique surfaces, hand operated means extending to the front of the machine for moving said guide to differr-nt set positions to bring one or another of said fields to the printing point, an indicating device to show which of said fields is at the. printing point, and means for retaining said guide in different set positions.

22. In a typewriting machine and in a. ribbon mechanism, the combination of two ribbon spools at opposite sides of the machine, an ink ribbon having longitudinal fields of different characteristics, a guide for said ink ribbon having oblique guide surfaces for gui [0 ing said ribbon across the printing point in an off-set path, the printing point being between said oblique surfaces, hand operated means extending to the front of the machine for moving said guide to different set positions to bring one or another ofs'aid fields to the printing point, an indicating device to show which of. said fields is at the printing oint, and means comprising a toothed bar fbr retaining said guide in different set posi tions. I

23. In a typewriting machine and in a ribbon mechanism, the combination of two ribbon spools at o posite sides of the -machine. an ink ribbon raving longitudinal fields of different characteristics, a guide for said ink ribbon having oblique guide surfaces for guide ing said-ribbon across the printing point in an off-set ath, the printing point being between sair oblique surfaces, hand operated means extending to the front of the machine for moving said guide to different set positions to bring one or another of said fields to the printing point, an indicating device to show which of said fields is at the printing point, means comprising a toothed bar for retaining said guide in different set positions, and a stop adjustably mounted on said bar.

24. In a typewriting machine and in a ribbon mechanism, the combination of a ribbon spool having a clutch device on one end thereof; a worm mounted co-axially with said ribbon spool and having a coi'iperating clutch device; means for rotating said worm; and a pivoted tripping device having an arm adapted to rest on the ribbon and another arm adapted to engage said worm when the ribbon is nearly exhausted from the spool.

25. In a typewriting machine and in a ribbon mechanism, the combination of a shaft; means for rotating said shaft; a ribb'oon spool loosely mounted on said shaft and having a clutch device on one end thereof a worm slidably mounted on said shaft and having a cooperating clutch device; and a pivoted tripping device having two arms, one adapted to rest on the ribbon and the other adapted to engage said worm when-the ribbon is nearly exhausted from the spool.

26. In a typewriting machine and in a ribbon mechanism, the combination of two ribbon spools each having a clutch member;

two worms, one mounted co-axially with each of said spools and each having a 00- operating clutch member; a pivoted tripping member for each,of said spools, each'of said tripping members having one arm adapted to rest on the ribbon and another arm adapted to engage said worm when the ribbon is nearly exhausted from the spool and a connecting device for causing one of said worms .to be uncoupled from its spool. when the ing therewith; and a link having its ends directly connected to said parts and ada ted to transmit motion from thedriving sha t to the driven shaft whenever said driving sh aft is turned by said driving means.

29. In atypewritingmachine and in ribbon mechanism, the combination of two ribbon spools; two parallel shafts, one for" each of said spools; a clutch device for each spool and shaft, each of said clutch devices comprising a member constrained to turn with the shaft and a member constrained to turn with the ribbon spool; and means for throwing onepair of clutch'members into engagement and the other pair out 01 en gagement. I I 30. In a typewriting machine and in ribbon mechanism, the combination of two ribbon spools; two shafts, one for each of said spools; a pair of cooperating clutch members for each s 001 and shaft, one men ber of each clutch iieing movable longitudinally of the sh aft into and out of engagement with the other member and the construction and arrangement being such that when said movable clutch members are moved in the same directi'on one of the clutches will be coupled and the other uncoupled; andmeans for moving said movable clutch members in the same direction.

31. In. a-typewriting machine, the combination with two parallel shafts, of means for causing said shafts to turn in unison,

comprising a connecting rod which in one position ofthe parts acts'as a link connecting said shafts and in another position of the parts actsas a crank shaft. l

32. Means for driving one rotary device from another, consisting of a connecting device or link connected eccentrically' with each of said rotary devices and having a rock'- ing motion about an axis extending longitudinallyof said link.

33. The combination of two rotary mem bers and a connecting link for driving one of said rotary members from the other, gitudinal reciprocation of said link and b oscillation of said link about an axis extend ing longitudinally of said link.

by lon- Signed at Syracuse, in the county of Onondaga, and State of New York, this sixth day of NovemberA. D. 1905.

ALEXANDER T. BROWN Witnesses:

J. ALLENA KAU A,

JOHN H. BARR. 

